1. Cross-benchmarking for performance evaluation: looking across best practices of different peer groups using DEA;Ramón;Omega (Westport),2020
2. Finding closest targets in non-oriented DEA models: the case of convex and non-convex technologies;Portela;J Product Anal,2003
3. Data envelopment analysis: the mathematical programming approach to efficiency analysis;Thanassoulis;Meas Product Effic Productiv Growth,2008
4. Pitfalls and protocols in DEA;Dyson;Euro J Oper Res,2001